摘要:
A low cost, reliable and high density magnetic disk device of a ramp loading type, in which a ramp or a dimple or dimples are free from wear even if loading and unloading are repeated. A plurality of dimples are arranged or running tracks are inclined so that the running tracks (ramp), on which a portion (a dimple or dimples) of a magnetic head supporting mechanism runs, includes different tracks at the time of loading and unloading. Alternatively, the magnetic head supporting mechanism has different portions engaging with the ramp at the time of loading and unloading.
摘要:
For the display of certain video scenes, in a case when first restrict data has a stricter restrict level than second restrict data, an on-screen circuit (5) operating in accordance with the output of a comparator (3) alters the display on the TV screen (6) to a single predetermined color, cutting out the video scene. Alternatively, in the case when first restrict data has a more lenient restrict level than second restrict data, the on-screen circuit (5) operating in accordance with the output of a comparator (3) displays the video scene unaltered. Furthermore, the extent of the difference between restrict levels of first and second restrict data can be checked on the TV screen (6) by means of data set in attribute register (9), making it possible to prevent overly deviant restrict level settings.
摘要:
Shift of input data without split by a shifter, generation of code extension data by a code extension data generator, and generation of a mask signal by a mask signal generator are carried out in parallel. The mask signal generator generates the mask signal based on an amount of shift and split mode information. An output selector replaces data shifted by the shifter with code extension data bit by bit based on the mask signal, and outputs data which are shifted and code-extended according to the split mode information and arithmetic/logical shift information. In a carry-select type adder/subtractor as another embodiment, if split parallel process is to be executed, both a pair of unit adders/subtractors execute an arithmetic operation to be carried out for the case where no carry is supplied from lower digits, and then a selector selects an arithmetic result, which is obtained when no carry is supplied from lower digits, regardless of the carry from the lower digits.
摘要:
Shock-absorbing material made from a mixture of solid particles and viscous elastic material is arranged at the periphery of an information storage and retrieval device. When an external shock is applied to the device, the shock-absorbing material is greatly deformed and dissipates the shock energy by inner friction sufficiently to prevent damage to the inner mechanism of the device. The deformed shock-absorbing material can be restored to the original shape so that it is repeatedly usable. Furthermore, by comparing the deformed shape and the quick reference table provided with the device, the amount shock acceleration can be roughly determined. The device conforms to one of a series of dimensional standards for information storage and retrieval devices.
摘要:
A solid state relay composed of a series connected pair of LDMOSFETs has a minimized output capacitance. Each LDMOSFET is configured to have a silicon layer of a first conductive type, a drain region of the first conductive type diffused in the top surface of the silicon layer, a well region of a second conductive type diffused in the silicon layer in a laterally spaced relation from the drain region, and a source region of the first conductive type diffused within the well region to define a channel extending between the source region and a confronting edge of the well region along the top surface of the silicon layer. Each LDMOSFET is of an SOI (Silicon-On-Insulator) structure composed of a silicon substrate placed on a supporting plate, a buried oxide layer on the silicon substrate, and the silicon layer on the buried oxide layer. The well region is diffused over the full depth of the silicon layer to have its bottom in contact with the buried oxide layer, so that the well region forms with the silicon layer a P-N interface only at a small area adjacent the channel. Because of this reduced P-N interface and also because of the buried oxide layer exhibiting a much lower inductive capacitance than the silicon layer, it is possible to greatly reduce a drain-source capacitance for minimizing the output capacitance of the relay in the non-conductive condition.
摘要:
This invention provides a heat transmitting pipe and a heat transmitting plate which are capable of greatly improving the heat transfer efficiency of a conventional finned heating pipe and a convention heating plate. Copper oxide powder is deposited in a vapor phase onto a cellular synthetic resin coated with an adhesive beforehand. Thereafter, a copper plate with the same metal powder deposited thereon is placed on one surface of the metal powder-bearing cellular synthetic resin and is brought into lightly pressed contact with the surface by a roll press or the like, to thereby form a laminated article. Subsequently, the cellular synthetic resin is burnt off in a combustion furnace, to thereby produce a cellular metal material of the copper oxide on the copper plate. Further, the cellular metal material is reduced and sintered in a reducing atmosphere such as that of a hydrogen reduction furnace, to thereby produce a cellular copper material which is provided with the copper plate on one surface thereof. The cellular copper material can be directly used as a material for working a heat transmitting plate in a heat exchanger.
摘要:
A parallel processing control apparatus comprises processing blocks each providing an equal function and incorporating pipeline operation units; a status register for storing statuses of the processing blocks; an instruction feeder for simultaneously allocating instructions to the processing blocks; a flagging unit for setting a flag for a corresponding one of the processing blocks to indicate that at least one instruction fed to another of the processing blocks and positioned, on a sequential model, behind an instruction being processed in the flagged processing block has been processed or passed through a specific stage; a flag holder for holding the flag; and a write controller for selecting a processing block whose status is to be written in the status register.
摘要:
A floating-point division cell consisting of partial remainder data register for storing parallel-partial-remainder data or third partial remainder data, divisor data register for storing parallel-divisor data or third divisor data, low-order divisor data generator for receiving the low-order portion of the divisor data and generating low-order divisor data, low-order partial remainder calculator for obtaining low-order multi-divisor data by multiplying the low-order divisor data and a multiple of 2 together and calculating new low-order partial remainder data by subtracting or adding the low-order multi-divisor data from/to the low-order portion of the partial remainder data, high-order divisor data generator for receiving the high-order portion of the divisor data and generating high-order divisor data, and high-order partial remainder calculator for obtaining high-order multi-divisor data by multiplying the high-order divisor data and a multiple of 2 together and calculating new high-order partial remainder data by subtracting or adding the high-order multi-divisor data from/to the high-order portion of the partial remainder data.
摘要:
A copying machine with a charger including a charging wire for charging the surface of a photosensitive drum and a convergent optical system for forming a focused image of an original on the surface of the drum. The copying machine further includes a waste toner unit, a cleaning unit for cleaning the charging wire and optical system which consists of a first cleaning member for grasping therebetween the charging wire stretched in the charger during cleaning, and a second cleaning member kept in contact with the surface of the convergent optical system, wherein the cleaning members are supported as to be movable in a longitudinal direction of the charging wire and the convergent optical system when cleaning the charging wire and the optical system.
摘要:
A cutting actuator for a button perforating sewing machine enables sequence of various operating steps in a button perforating operation of sewn cloth to be changed under control of an operator.The actuator employs a solenoid controlled arrangement wherein actuation of the solenoid selects one sequence while deactuation of the solenoid selects another sequence.